Telltale.



PATENTED NOV. 28, 1905.

R. E. COBB.

TELLTALE.

APPLICATION FILED A1112, 1905.

Wai nes s e s,

ROBERT H. COBB, OF RAT PORTAGE, CANADA.

TELLTALE.

Speccation of Letters Patent.

Patented Nov. 28, 1905.

Application filed April 12,1905'. Serial No. 255,140.

tl whom, it Wtcty concern,.-

Be it known that I, ROBERT H. COBB, asubject of the King of GreatBritain, residing at Rat Portage, county of Rainy River, in the Provinceof Ontario, Canada, have invented certain new and useful Improvements inTelltales; and I do hereby declare that the following is a full,.clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in semaphores; andit consists in the addition of a synchronally-operating telltale actingin the same manner and direction as the semaphore.

The object of th'e invention is to enable an operator to determinewhether or not a semaphore is operated when located at a distance from asignal-tower or from the station of the operator; and it consists incertain features of novelty in the detail construction and arrangementofthe mechanism hereinafter more specifically referred to.

In the annexed drawings similar numerals of reference indicatecorresponding parts in both gures, wherein- Figure 1 is an elevationalview showing my improved semaphore and telltale connected, and Fig. 2 isan-elevational view of the semaphore standing alone.

Referring to the parts, 1 is a semaphorepost upon which is pivotallysupported the semaphore-arm 2, carried upon the pivot 3, projecting fromsaid post 1, as shown in Fig. 2. Extending from the rearward extension 4of the semaphore 2 is a cable 5, which extends downwardly to the arm 6of the bellcrank lever, which is pivoted at 7 on the bracket 8,projecting laterally from said post 1. Extending thence rearwardly fromthe vertical leg of said bell-crank lever is a cable 9, which extends toand is connected with the wheel or drum 10, supported on the bracket 11at a distance from said semaphore-post 1. In convenient proximity to thesaid wheel 10 is a smaller post 12, upon which is carried the telltalefeature of 'the device. This telltale com-prises the pivoted arm 13,having the rearward-extending portion 14, which is connected by the cordor cable 15 with a bell-crank lever 16, which is pivotally supported onsaid post 12, while a cable 17 extends from said bell-crank lever 16 toa corresponding bellcrank lever 18, which is carried by the bracket 19,projecting from said post 1. Extending upwardly from the bell-cranklever 18 is a cable 19, which is connected with the semaphore-arm 2 onthe opposite side of thepivot 3 from the point of connection of thecable 5. In convenient proximity to the post 12 is a locking-post 20,provided with any convenient locking means, as pins 21, adapted to serveto prevent movement of the arm 13 upon its pivot.

It will be evident from the connection of the parts that when thesemaphore-arm 2 is manipulated by means of the operating-lever 22 andcable 9, a corresponding movement of the telltale-arm 13 will resultfrom the connection described. The post 12 should be low and convenientto the wheel 10 to enable the operator of the semaphore when wishing toput the semaphore into position to loosen said wheel 10 and pull thetelltale 13 down, where it may be fastened in any convenient positionwith relation to the post 20 by means of the pins 21 or other equivalentlocking device. This movement will result in a corresponding movement ofthe semaphore-arm 2, and owing to the means for locking the telltale-arm13 no weights will be required to balance the semaphore-arm 2, andconsequently there will be no danger of the device getting out of order.C

It will be evident that when the arm 13 of the telltale is lowered withrelation to the post 2O there will result a draft on the cable 15, whichwill rock the bell-crank levers 16 and 18, thereby causing draft uponthe cable 19, extending from the bell-crank lever 18, and acorresponding downward movement of the arm 2 will result, and when thelever 22 is manipulated to cause draft upon the cable 9 in the directionindicated by the arrow in Fig. 1 there will result a rocking of thebell-crank lever 6, which will cause a downdraft upon the cable 5,thereby raising the arm 2 to the position shown in Fig. 2. This is agreat advantage in the operation of the device, as it will be possibleto arrange the telltale and operating-lever at a considerable distancefrom the semaphore-post 1. Without the connection herein shown there isno means for determining whether the semaphore is actually operated ornot if the semaphore-post 1 and its connected posts should happen to belocated behind an obstruction or during snow-storms, &c., which renderthe semaphore 2 invisible.

On the post 1 is located a bracket 23, which serves as a stop to preventexcessive movement upwardly of the semaphore-arm 2, and

IOO

it will be evident that when the arm 2 has reached the position shown inFig. 2 the rear end portion 4 of said semaphore-arm willk strike saidstop-bracket 23.

The semaphore-arm 2 is provided with different-colored plates 24 and 25,and it will be evident from the location ofthe lamp 26 that the plate 24is in coincidence with said lamp when the arm 2 is in the position shownin Fig. 2 and the plate 25 is in coincidence with said lamp when thesemaphore-arm occupies a lowered position. Thus different light-signalsmay be given. I

While I have shown in the accompanying drawings the preferred form of myinvention, it will be understood that I do not limit myself to theprecise form shown, for many of the details may be changed in form orposition Without affecting the operativeness or utility of my invention,and I therefore reserve the right to make all such modifications as areineluded within the scope of the following claims or of mechanicalequivalents to the structures set forth.

Having described my invention. what I claim, and desire to secure byLetters Patent, 1s

1. In a telltale for semaphores, a plurality of semaphore-posts, abell-crank lever on one post, a bell-crank lever on the other post, aplurality of pivotally-supported semaphorearms, cables connecting saidbell-crank levers and one of said semaphore-arms, a cable connecting twoof said bell-crank levers, and a cable extending from the thirdbell-crank lever to manipulating means.

2. In a telltale for semaphores, a plurality of semaphore-posts, apivoted arm on each of said posts, a pair of bell-crank levers pivotallysupported on one post, cables connecting the horizontal arms of saidbell-crank levers with the semaphore-arm on said post, a bellcrank leveron the other post, a cable connecting the horizontal arm of saidbell-crank lever with the telltale-arm on said post, a cable connectingthe vertical legs of two of said bell-crank levers, and a cable runningfrom the other bell-crank lever to manipulating means.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

ROBERT H. ooBB.

Witnesses:

G. C. FRISBIE, B. LEISHMAN.

